Cooler.



H. T. THOMAS.

l COOLER. APPLIOATION HLM) 1339.2111905.

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No. 851,844. PATBNTED APR. 30, 1907.

H. T. THOMAS.

COOLER.

A PPLIOATIQN FILED 1920.21.1905.

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No. 851,844. PATENTBD APR. 30, 1907. H. T. THOMAS.

CUOLER.

APPLICATION FILED DEO.21,1905.

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V/T/VESSES: JNVENTOR.

TYORNEY/S,

' siding at Lansing,

UNITED sTATEs PATENT oEEioE.

HORACE T. THOMAS, OF LANSING, MICHIGAN, ASSIGNOR' TO REO CAR CO.,

OF LANSING, MICHIGAN, A CORPORATION OF MICHIGAN. .s

COOLER.

No..s51,s44.

Speccationof Letters Patent.

APatented April 30, 1907.

To all, 'whom 'it 'may con/cern:

Be it known that I, Hormon T. THOMAS, a citizen ofthe 'United States ol America, re-

in the county oi' Ingham and State ol' i\l'ichigan, have invented certain new and usei'ul Improvements in Coolers, of which the following is a specification, reference being had therein to the accompanying drawings. y

This invention relates to coolers designed for Coeli@ liquid by circulatingit through tubes exposed to' the air and the particular object I have in view is to produce a cooler 'v of the sectional type which is chea to manu- `facture, efficient, frost proof, an( yotherwise well adapted for use on automobiles and the like. l

My invention has particular reference to a novel form of expandible tubes, to the novel manner of constructing the cooler in sections andunits, and to.- the means of' increasing the cooling surface of the tubes, alias more fully hereinafter described and shown in the aecom anying drawings and more specifically set orth in the claims.

Inthe-drawings Figure l is an elevation of my improved cooler with the middle portions of the tubes broken out to present it in a 'smaller compass; Fig. 2 is in part an end elevation, being the end shown at the right in Fig. l, and in part (comprising four tiers composing the cooler and of headers) a vertical section through thesame in a plane parallel to that 'of the elevation; Fig. 3 is a topplan of Fig. l, the middle portion of the tubes being broken out; Fig. 4 isgahdetached elevation of one of the headers Fig. 5 is a cross section on line L'zn- Fig. 4; Fig. .6 isa detachedelevation of one of the radiating fins, and Fig. 7 is a cross section of Fig. 6 on line iff-fj.

In the drawings A A re resent the tubes B B2 the `heads connecting the tubes into a circulatin system, the -former being preferably of rawn brass and flattened and the latterbeing of cast brass. -The tubes A Ak are flattened their'whole length except at the ends, which are expandedto a circular cross section and.

constitute tubular nipples a by means of apertured ears b.

gether in groups of four.

On one side in the planey of the ears the header is provided with a plurality of flanged side openings c adapted to receive the nipples e of the tubes, and in the middle at right angles to said plane the header is formed with an aperturcd boss d for connecting it with anothei` header, as will be more fully described hereinafter. l

The headers B are exactly like the headers B except that they have apertured bosses d on both the upper and lower side for connecting with the headers above and below. The headers B2, which are the first and the last of the series, are similar to the headers B except that they are preferably a little larger and cast with inlet and outlet arms c f respectively for connection with the inlet andoutlet pipes of the cooler; and on account of these arms the tubes A are a little shorter than the tubes LA. The header B at the bottom is provided in addition with a drainage cock g.

The cooler is built u orsections each comprising two headers with the tubes uniting them together, the drawin s showing four tubes for each section, the tu es beings@ connected with the headers that their flattened sides are in the horizontal plane.l The cooler is built up of these sections which are connected in the, lfollowing manner: Beginning on top at the right, the uppermost header B which has the inlet is connected with the header next below and the last one at the bottom, which has the outlet, is connected to the one next above it. At'the left all the headers are connected to- The connections being thus arranged, it will be seen that the heated medium .after entering the top headerB2 at the right hasV its circulation split up into eight 'tubes leading from the two conneetedtop headers to the two corresponding headers on the left, thence the circulation takes its course in theopposi te direction through the eight tubes comprising the -two tiers next below and so on back and forth as indicated by the arrows, finally assing out through the outlet from the ottom header at the right. The circula-` tion is thus taking place from the top downward back and forth through two sections at a time which split it up into eight tubes, the two sections together thus forming a unit of circulation.

in horizontal tiers .45 capacity ofthe cooler may thus begeadily 'I preferably provide the tubes with ra- Aprovided vith corrugations tand the openthe ends of the tie rod's. These tie rods also diating tins C which are made of metal sheets punched out withopeniiigs h corresponding `to the shape and position of the tubes in each section so that each fin extends across all the tubes of one section. The fins may be vings 7L are formed with standing ilan'ges 7L around them to form an extended metallic contact withl the tubes. It will be obvious that these fins-have tobe strung upon lthe tubesl before the ends of the Alatter are exe panded intothe round shape. j

` The'cooler is formed linto a rigid structure 'by means of tie rodsD whichv pass'through Athe apertured ears b of the. headers and the. different groups of headers are spaced apart by means of spacing thinibles E uponthe tie rods, the whole beingclamped together means of suitable niits Yandl washers upon form convenient means tpr securing the cooler in position by engaging with suitable supports G and stays H.

lhe tubes havinor the iounded'ends are readily secured to the headers by means of soldering or brazing and the connections between thelieaders are made tight by i'neans of short thimbles inserted into the apertures of the connecting bosses and by .placing washers of soft copper or, like material bebetween the tween the joints and clamping them fast, headers by means of the tie rods.

It will be seen thatA inycooler i'sbuilt up ofa lvertical series Yof horizontal tierfs'or sections l' each'v composed -of aplurality of flattened tubesand two headersconnecting the @ppcsite ends of the tubes in parallel; further, lthe sections are connected in airs by meanso'f connections between the lieads of adjacent sections and each pair bf sections thus united `forin together-a unit, which units are connected in seiiesby means of -connections between adjacentheaders of the units; and the .varied by varying `-the number ot., units to suit the requirements. I

.My construction is particularly `designed and adapted for use on automobiles; it is not liable to leakage either from expansion or .contraction of the partsor from jolting; it

is very compact, oii'ers great facili-ty for sup' porting and connecting it in position and by reason of its having expandible tubes; it is praetically'frost proof and forms a cooler of great surtacefcompared with itsliquid -capacity, ,Y

' Having thus fully. described my invention, what-I claim isn- 1. A 'sectional cooler composed of avertical series of horizontally arranged sections cach consisting of va plurality of tubes and' two tubular headers transversely uniting them at their opposite ends, the tubes being iattenedbetween their ends in the horizontal plane of the section-and the ends thereof be- .ing expanded and'forining nipples of circular cross section and the headers being formed with corresponding lateral'openings 4adapted to receive said nipples and form therewith the connection with thetubes,'the sectionsv beingconnected into a circulatory system by means 'of vertical connections between the headers.

2. Asectional cooler composed of avertir cal series of horizontally arranged sections,

each consistingof a plurality of tubes and two tubular headers transversely connecting., l

the tubes at, their opposite ends, said headers provided -midway their length with apertured bossesadapted to connect the header in verticalalinement with the headers ciadj'acentsections, the header at one end provided with two such bosses on opposite sides adapting jthe sections tobe united in pairs for-ming units.

3. Acooler composed of avertical series of horizontally arranged sections .each consisting of a pluralityV of tubes and cast tubular headers transversely Iconnecting the tubes together at their opposite ends, said headers formed with closed ends provided with lattened ears for the reception of tie rods and vwith apertured bosses midway of their length adapted toA connect the header with thel header of an adjacent section or sections in vertical alinement therewith.

4i, A cooler composed of a vertical series of units, each composed of a plurality of like sul perposedsections, each section consisting of a plurality of tubes and two headers transversely uniting the opposite. ends of said tubes upon a horizontal plane, the headers 'of at theiropposite ends and -withconnecting vbosses midway of their length wherebyfthe units are alternate-ly. united together at op. posite ends .in series with each other and the .tubes of each unit are united together in parallel with each other,'tie rods passingthrough the ears of theheaders and spacing thimbles ,interposed upon the' tie rods inthe open spacesbetwifeenthe units.

6. A cooler composed of avertical series of units each composed of a plurality of superposed sections, each section composed of a plurality otiiattened tubes extending in a horizontal plane and two tubular headers transversely uniting the same at opposite` IOO rio

the sections being provided upon their ad- '1,05

bends, said headers provided with closed ends terminating in ilattened ears and with connecting bosses midway of their length whereby the units are connected invertical .series with each other and with the tubes of each unit in parallel, Vertical tie rods passino v through the ears of the headers andadapte 'units' each composed of two superposed sections each consisting of Aa series of''lattened tubes formed with ends of circular cross-section and two cast headers transversely connecting the opposite ends of the tubes upon ahorizontal plane, the headers being. formed with ears vat the ends and with connecting bosses, the unit being l`formed by the headers at each end being connected together midway of their length by means o'l connecting bosses formed upon their adjacent faces and the units being connected-together in series with each other by means of like connecting bosses formed on adj ac ent headers of the units, tie rods pasing through the ears of the headers, spacing thimbles upon the tie rods in the open spaces between the units, fins extending in one piece across the tubes of each section and provided with flanged openings for the passage ofthe tubes'therethrough and inlet and'outlet arms integrally formed with theterminal headers and extending in horizontal planes.

In testimony whereof- I affix my signature in presence of two witnesses.

-HORACE T. THOMAS. 'Witnessesz E. F. PEER, GRETA LAYeoX. 

